Rotary electric brush.



D. L. WWERY.

HRUSH.

APPLICATION man JUNE 13, 1911.

ROTARY ELEEWIC Pmnm NOV 2?, m?

DGLPH L. LOWERY, 0F SAhTI DUSKY, @HTQ.

EQTARY ELECTRIC BRUSH.

Specification of Letters Patent.

Patented Nov. 2?, 31911?? Application filed June 13, 1915?. Serial No. I'M-589.

To all whom it may concern:

Be it known that Dorrie: L. Lownnr, a citizen of the United States, residing at Sandusky, in the county of Erie and State of Ohio, has invented ,certain new and useful Improvements in Rotary Electric Brushes, of which the following is a specification, reference being had to the accompanying drawings. p

This invention relates to brushes, and particularly to rotary brushes driven by an electric motor.

@ne of the general objects of this invention is the provision of a brush having a motor upon the shaft on which is mounted a rotary brush, the motor being provided with a frame providing a handle arching over the motor, the frame being provided with wheels so that the brush may be moved over the surface to which it is to be applied in the same manner in which an iron is used in the operation of ironing. I

More specifically the objects of my invention are to provide means whereby the dust from the brush maybe discharged into a hood and drawn through the hollow handle tad into a fan housing and from thence discharged into a dust collecting bag.

A further object is to provide a construction of this character which is very compact, in which the parts are evenly balanced, and in wvhich the bag is detachable so that it may be used or not as desired.

Still another object is to provide for a ready attachment and detachment of the bag and for the support of the dust collecting be when in use.

other object is to provide means whereby an undue-pressure of air may be allowed to escape from the dust collecting ba without carrying the dust with it.

%ther objects will appear in the course of the following description.

My invention is illustrated the accom-- panying drawings, wherein Figure 1 is a perspective view of my im proved brush;

Fig. 2 is a longitudinal sectional view of the brush; Fig. 3 is a section on:the line Fig.2;

the dust collecting bag, the axle being shown in elevation.

Referring to these figures, 10 designates a supporting frame or bed plate, which may be of any suitable construction, and which is provided with the downwardly extending brackets 11, within which are mounted the rollers 12. These rollers may be in the form ofcaster wheels, if desired, so that they mav trio motor 18, of any suitable construction,

the details of which are not shown. The armature 19 .of this motor has a shaft which extends into the housing 13, as at 20, and mounted upon this portion of the shaft is a circular brush 21 having radiating bristles or radiating wires, depending upon the purpose for which the brush is to be used, as will be later stated. The shaft of the brush is so disposed within the housing 13 that the brush will project down slightly below the open mouth 22 of the housing 13, as illustrated clearly in Fig. 2. The opposite end of the armature is extended as at 23 into the housing 17 and carries upon it a suction fan 21 having the usual radiating blades. The housing 17 has a discharge nozzle 25, which extends inward from the housing, that is toward the opposite housing 13, and to one side of the motor. This nozzle is formed with outwardly projecting pins 26 adapted to engage with bayonet slots formed upon the dust bag collar, as will be later described.

The hollow handle section 16 does not discharge directly into the housing 17 but into a duct 27 formed upon the housing 17, this iltltl the center of the fan, the fan discharging into a lateral branch 29 and out through the rig. 4. is a fragmentary sectional view of nozzle 25.. The dust which is drawn from.

the brush 21 through the hollow handle thus takes the course shown by the arrows in Fig. 3. The dust is sucked from the brush and through the handle by means of the rotatable suction fan 24 and is discharged out of the nozzle 25.

The dust bag is formed of suitable fabric and is designated 30 and is formed at its open end with a collar 31 having bayonet slots 32, or other suitable means of connect ing it to the nozzle 25, so as to have dust tight engagement with the nozzle 25. I do not wish to be limited to any particular means for connecting the dust bag 30 to the nozzle 25. It is obvious, of course, that the bayonet slots 32 coact with the pins 26 in the usual manner. The bag may also be provided at one or more points with outlet nozzles 33 which extend into the bag and are provided on their inner ends with strainers 34 which will permit excess air to pass out from the bag, but prevent dust from passing out.

The bag 30 is held in place upon the bed at one side of the motor 18 by means of the clamps 35 and 36. The clamp 36 is attached to the housing 13, while the clamp 35 is attached to the bed plate. These clamps are curved and are in the form of springs. The motor is held in place upon the bed plate by any suitable means, as for instance by the lugs 37, which extend from the wall of the housing 13 and the housing 17. The motor is connected to the source of current by means of the usualconducting wires 38 and plug 39 and disposed in the circuit of these wires 38 is a'switch 40, which is preferably mounted upon the bed plate, the switch, when shifted in one direction, energizing the motor, and when shifted in the other direction cutting off the connection between the motor and the source of energy.

As before stated, the brush 21 may be formed of any desired material, depending upon the use to which the brush is to be put. For instance, if my device is to be used for cleaning billiard tables, clothes, and like articles, then a bristle brush is used, but if the device is to be used for cleaning butchers blocks,for instance, then wire brushes are used. This construction has been found particularly convenient for cleaning butchers blocks, as it does away with the necessity of scraping the blocks. The brush may be operated in the manner of an iron and inasmuch as the wheels 12 have swiveled engagement with the bed plate, it is obvious that the brush may be shifted in any direction at the will of the o erator. It is also obvious that where the rushes are used for cleaning billiard tables, for instance, it is most desirablethat the dust, after being taken up by the brush, shall not be discharged again menses Upon the table and hence the value of the dust bag. This dust bag may be readily detached and emptied when desired.

While I have illustrated a form of brush which I have found thoroughly practical and eflicient in every particular, yet I do not wish to be limited to the exact construction illustrated, as many changes may be made therein without departing from the spirit of the invention.

Having described my invention, What I claim is p 1. A brush of the character described including a Wheel supported motor including a shaft, a rotatable brushoperatively connected to the shaft at one end of the motor, a rotary suction fan operatively connected to the shaft at the other end of the motor,

a housing surrounding the brush, a housing inclosing the fan, and a hollow handle eX- tending over the motor and forming a duct leading from the brush housing to the fan housing.

2. A brush of the character described including a wheel supported motor including a shaft, a rotatable brush operatively connected to the shaft at one end of the motor, a rotary suction fan operatively connected to the shaft at the other end of the motor, a housing surrounding the brush, a housing inclosing the fan,a hollow handle extending over the motor and forming a duct leading from the brush housing to the fan housing, and a detachable dust collecting bag operatively connected to the fan housing.

3. In a brush of the character described, a bed plate, supporting wheels swiveled to the bed plate, a motor mounted upon the bed plate and including a shaft projecting beyond the motor at both ends, a rotatable brush mounted upon one end of the shaft, a suction fan mounted upon the other end of the shaft, a housing inclosing the brush and open at its lower end, a hollow handle extending over the motor and longitudinally thereof, and connecting the brush housing with the fan housing, a dust container operatively connected at one end to the fan housing to receive the dust ejected therefrom.

4. A brush of the character described including a wheel supported bed plate, a motor mounted thereon and extending longitudinally thereof and including a shaft projecting beyond the ends of the motor, a rotatable brush mounted upon one end of the motor shaft, a suction fan mounted upon the other end of the motor shaft, a housing inclosing the rotatable brush and. open at its lower end, the brush projecting below the open lower end of the housing and said housing being formed with a hollow handle section extending over and longitudinally of the motor, a housing inclosing the suction fan and having an integral hollow handle In testimony whereof I hereunto aiifix my section extending over the motor and longisignature in the presence of tWo Witnesses.

tudinally thereof and operatively engaging with the first named handle section, the fan DOLPH LOWERY' 5 housing having a nozzle, and a dust con- Witnesses:

tainer detachably engaging With said nozzle JAMES M. FRENCH,

and supported upon the bed plate. MARGARET NOLAN. 

